Sash-lock.



D.' E. SAMPSON.

SASH LOCK. APPLICATION FILED JUNE so, 1910.

Patented Feb. 14, 1911.

Attorneys sash is denoted by the numeral 1.

DAVID E. SAMPSON, 0F GRAHAM, NORTH CAROLINA.

SASH-LOCK.

Specification of Letters Patent.

Patented Feb. 14, 1911.

appncatnm ined rune so, 191e. serial No. 569,728.

T o all whom it may concern.-

Be it known that I, DAVID E. Si-xiirsorv, a citizen of the UnitedStates, residing at Graham, in the county of Alamance and State of NorthCarolina, have invented a new and useful Sash-Lock, of which thefollowing` is a specification.

It, is the object of this invention, to provide in simple, merchantableand inexpensive form, a sash look, adapted to be assembled with one ofthe upright stiles of an upper sash of a window, to engage the lowersash thereof, to hold the said lower sash locked, when the same is inlowered position.

Another object of the invention is to provide a sash lock of the sortabove mentioned, in which the stop portion thereof shall be of novel andimproved form, t-he said stop being' adapted to house the resilientmeans within its contour, and to provide a novel means for securing oneend of the resilient means.

Another object of the invention is to provide a sash lock of the sortabove mentioned, in which the stop, although light and requiring but aminimum amount of metal, shall be ot' sutiicient strength to withstandthe strains which are imposed upon it.

lilith the above and other objects in view, the invention consists inthe novel construetion and arrangement of parts hereinafter described,illustrated in drawings, and claimed. The drawings show' typicalembodiments merely, and it is to be understood that changes, properlyfalling within the scope of what is claimed, may be made withoutdeparting from the spirit of the invention.

In the accompanying drawings, Figure 1 is a front elevation, showing thedevice in place upon the sash of a window, parts being broken away, thedevice being positioned so as to hold the lower sash in locked relationwith respect to the upper sash; Fig. 2 is a front elevation of theinvention, showing the device in the position which it will assume whenthe lower sash has been raised; Fig. 3 is al transverse section upon theline 3-3 of Fig. 1; Fig. 4 is a section upon the line 4 4 of Fig. 1; andFig. 5 is a detail perspective of the stop.

In the drawings, the stile of the upper The numeral 2 denotes the crossrail of the lower sash, and the numeral 3 the securing strip, wherebythe lower sash is held in place within the window frame, for slidingmovement.

In carrying out the invention, there is provided, as a primary andfundamei'ital element, a carrying member 4, preferably taking the formof a fiat plate. This carrying member 4 is secured in place upon thestile 1 of the upper sash by means of the screws 5 or other securingelements, adapted to a like end.

As denoted by the numeral the stile 1 of the upper sash is recessed,beneath the carrying member 4, there being an opening 7 in the carryingmember. Fashioned integrally with the carrying member 4. and extendedinto the recess G, at the upper and lower ends of the opening T in thecarrying member, are ears 8, in which a shaft 9 is held.

The stop is seen most clearly in Fig. 5, and as there disclosed,comprises a flat body portion 10, provided with a. rectangularlydisposed base 11, and with a top portion 12, substantially parallel tothe base 11. A reinforcing flange 14 connects one edge of the body 10with one edge of the base 11. One edge ofthe body 10 is inclined, asdenoted by the numeral 19, so as to give the said body portion, whenviewed in front elevation, as in Fig. 2, the shape of a blunted wedge.The free edge of the reinforcing flange 14 is likewise inclined, asdenoted by the numeral 20. By thus inclining the edges of the stop, asshown at 19 and 20, the same is given the form of a blunted wedge,adapted to present a maximum bearing surface, without involving anunnecessary amount of metal in the construction of the stop. Obviously,the ilange 14 serves to reinforce the base 11, and to prevent the stopfrom being broken or injured in use. The openings 16 in the top 19. andin the base 11 serve to receive the shaft 9, so that the stop may berotatably mounted thereon.

A helical spring 15 incloses the shaft 9, one end of the spring 15 beingsecured to the rear face of the carrying member 4, as denoted by thenumeral 17. The other end of the spring 15 is engaged in the angleformed by the elements 14, 11 and 10 of the stop, as shown at 1S. Thebase 10 is adapted to serve as an abutment for one end of the spring 15.

It is to be noted that the spring 15 is of less cross sectional areathan the base 11. Thus, when the device is in use, the spring 15 will beprotected against accidental injury.

The spring 15 acts to maintain the stop in Outstanding position as shownin Fig. l of the drawings, and thus, when the lower sash is in closedposition, the stop, engaging the said lower sash, will prevent the samefrom being raised. IVhen, however, it is desired to raise the lower sashthe stop may be swung manually, into the position shown in F ig. 2,whereupon the lower sash may be slid upwardly. By reason of the factthat the portion 10 of the stop serves as a complete closure for theopening 7 in the carrying member t, there will be no chance for thecarrying member lto splinter or to wear that face of the lower sashwhich slides along the carrying member. Likewise, by thus effecting acomplete closure of the opening 7, the spring l5 is securely housedagainst accidental injury.

Having thus described the inrention, what is claimed is l. A device ofthe class described including a carrying member; a stop pivoted theretoand comprising a body provided with a laterally projecting base and witha reinforcing flange connecting one edge of the body with one edge ofthe base; and resilient means abutting against the base for maintainingthe stop in outstand-j ing position with respect lto thercarryingmember.

2. A device of the class Vdescribed oomprising a carrying memberga stoppivoted thereto and comprising a body provided with a laterallyprojecting base and with a reinforcing iange connecting one edge Ofthebody with one edge of the base; Aa helical spring having one end securedto the carrying` member, the other end of the spring being lodged withinthe angle defined by the body of the stop, the base, and the reinforcingflange thereof; the spring being adapted to maintain the stop inoutstanding position with respect to the carrying member.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

DAVID E. SAMPSON.

lVitnesses GI-IAs. D. JOHNSTON, J. ADOLrn LONG.

